笔记应用中如何让modal window准确反映每条笔记的内容？
How to make modal window accurately reflect contents of each note in a note-taking app?
我是 javascript 的新手，正在开发一个笔记应用程序来练习我目前学到的一些东西。一切正常，但是，当我单击“阅读更多”按钮查看笔记的溢出文本时，它会显示最新笔记中的文本，而不是我单击“阅读更多”的笔记。我希望在按下相应的“阅读更多”按钮时显示特定笔记的整个文本。我是不是想多了？我认为某种 for...of 或 for 循环的实现可能会帮助我实现这一结果。这是我的代码笔的 link：https://codepen.io/oliverc96/pen/xxdZYrr
const addNote = document.querySelector('.add-note');
const newNote = document.querySelector('#new-note');
const noteFeed = document.querySelector('#note-feed');
let modalBg = document.createElement('div');
let modalWindow = document.createElement('div');
let exitSymbol = document.createElement('i');
let modalText = document.createElement('p');
function expandNote() {
modalWindow.classList.add('enterAnimation');
modalBg.style.visibility = 'visible';
exitSymbol.addEventListener('click', () => {
modalBg.style.visibility = 'hidden';
modalWindow.classList.remove('enterAnimation');
})
}
function createNote() {
const noteContainer = document.createElement('div');
noteContainer.classList.add('containerStyle');
let noteHeader = document.createElement('h1');
const noteNum = noteFeed.childElementCount;
noteHeader.innerText = `Note #${noteNum + 1}`;
noteHeader.classList.add('headerStyle');
noteContainer.append(noteHeader);
let noteText = document.createElement('p');
noteText.innerText = `${newNote.value}`;
noteText.classList.add('paraStyle');
noteContainer.append(noteText);
let readMore = document.createElement('button');
readMore.innerText = 'Read More';
readMore.classList.add('btnStyle');
noteContainer.append(readMore);
noteFeed.append(noteContainer);
readMore.addEventListener('click', expandNote);
modalBg.classList.add('modal-bg');
modalWindow.classList.add('modal-window');
exitSymbol.className = 'far fa-times-circle';
exitSymbol.classList.add('exitSymbol');
modalWindow.append(exitSymbol);
modalText.classList.add('fullTextStyle');
modalText.innerText = `${noteText.innerText}`;
modalWindow.append(modalText);
modalBg.append(modalWindow);
noteContainer.append(modalBg);
newNote.value = '';
}
addNote.addEventListener('click', createNote);
newNote.addEventListener('keyup', function(e) {
if (e.keyCode === 13) {
e.preventDefault();
createNote();
}
})
实际上您的 modalText 将始终根据您的代码存储最新值。您可以按照以下步骤解决此问题。
- 将
data-attribute 附加到 noteText。
- 当点击
read more 时传递该特定笔记的 ID。
- 现在只显示所选项目的 innerText。您可以使用 querySelector 使用
data-attribute. 获取 element
你可以检查我的实现。
console.clear();
const addNote = document.querySelector('.add-note');
const newNote = document.querySelector('#new-note');
const noteFeed = document.querySelector('#note-feed');
let modalBg = document.createElement('div');
let modalWindow = document.createElement('div');
let exitSymbol = document.createElement('i');
let modalText = document.createElement('p');
function expandNote(noteContainer, noteNum) {
return function () {
modalWindow.classList.add('enterAnimation');
modalBg.style.visibility = 'visible';
exitSymbol.addEventListener('click', () => {
modalBg.style.visibility = 'hidden';
modalWindow.classList.remove('enterAnimation');
})
const data = document.querySelector(`[data-id='${noteNum}']`).innerText;
showMoreModal(noteContainer, data);
}
}
function showMoreModal(noteContainer, data) {
modalBg.classList.add('modal-bg');
modalWindow.classList.add('modal-window');
exitSymbol.className = 'far fa-times-circle';
exitSymbol.classList.add('exitSymbol');
modalWindow.append(exitSymbol);
modalText.classList.add('fullTextStyle');
modalText.innerText = `${data}`;
modalWindow.append(modalText);
modalBg.append(modalWindow);
noteContainer.append(modalBg);
}
function createNote() {
const noteContainer = document.createElement('div');
noteContainer.classList.add('containerStyle');
let noteHeader = document.createElement('h1');
const noteNum = noteFeed.childElementCount;
noteHeader.innerText = `Note #${noteNum + 1}`;
noteHeader.classList.add('headerStyle');
noteContainer.append(noteHeader);
let noteText = document.createElement('p');
noteText.innerText = `${newNote.value}`;
noteText.classList.add('paraStyle');
noteText.setAttribute('data-id', noteNum);
noteContainer.append(noteText);
let readMore = document.createElement('button');
readMore.innerText = 'Read More';
readMore.classList.add('btnStyle');
noteContainer.append(readMore);
noteFeed.append(noteContainer);
readMore.addEventListener('click', expandNote(noteContainer, noteNum));
newNote.value = '';
}
addNote.addEventListener('click', createNote);
newNote.addEventListener('keyup', function(e) {
if (e.keyCode === 13) {
e.preventDefault();
createNote();
}
})
* {
padding: 0;
margin: 0;
box-sizing: border-box;
font-family: 'Montserrat', sans-serif;
}
#wrapper {
width: 1600px;
height: 100vh;
margin: auto;
text-align: center;
}
h1 {
font-size: 100px;
margin-top: 20px;
font-weight: 500;
}
h2 {
font-size: 50px;
font-weight: 400;
margin-top: 10px;
}
#add-new-note {
color: rgb(0, 153, 153);
}
textarea {
width: 1500px;
margin-top: 30px;
height: 60px;
border-radius: 6px;
padding: 20px;
font-size: 18px;
}
textarea:focus {
outline-color: black;
}
.add-note {
font-size: 20px;
width: 180px;
height: 50px;
border-radius: 6px;
margin-top: 30px;
background-color: rgb(0, 153, 153);
color: white;
border-style: solid;
border-color: rgb(0, 102, 102);
}
.add-note:hover {
background-color: rgb(0, 128, 128);
cursor: pointer;
}
#note-feed {
background-color: rgb(0, 153, 153);
height: 500px;
margin-top: 25px;
width: 1500px;
border-radius: 6px;
display: flex;
overflow: scroll;
flex-wrap: wrap;
padding: 20px 10px;
margin-left: 50px;
}
.containerStyle {
display: flex;
flex-direction: column;
justify-content: space-around;
background-color: rgb(169, 169, 214);
height: 48%;
width: 31%;
margin-right: 11px;
margin-left: 20px;
border-radius: 6px;
margin-bottom: 20px;
overflow: hidden;
padding: 0 28px;
padding-bottom: 15px;
text-align: left;
}
.headerStyle {
font-size: 30px;
}
.paraStyle {
display: -webkit-box;
-webkit-line-clamp: 3;
-webkit-box-orient: vertical;
font-size: 18px;
text-overflow: ellipsis;
overflow: hidden;
}
.btnStyle {
font-size: 20px;
width: 150px;
height: 40px;
border-radius: 6px;
background-color: rgb(255, 128, 128);
color: white;
border-style: solid;
border-color: rgb(255, 77, 77);
align-self: left;
}
.btnStyle:hover {
background-color: rgb(255, 102, 102);
cursor: pointer;
}
.modal-bg {
z-index: 1;
position: fixed;
width: 100%;
height: 100%;
top: 0;
left: 0;
background: rgba(0,0,0,0.5);
color: white;
display: flex;
justify-content: center;
align-items: center;
visibility: hidden;
overflow: scroll;
}
.modal-window {
border-radius: 6px;
background: white;
width: 70%;
min-height: 30%;
max-height: 70%;
overflow: scroll;
display: flex;
justify-content: flex-start;
align-items: flex-start;
}
.enterAnimation {
animation-name: fadeInDown;
animation-duration: 1s;
}
@keyframes fadeInDown {
0% {
opacity: 0;
transform: translateY(-200px);
}
100% {
opacity: 1;
}
}
.exitSymbol {
color: rgb(0, 128, 128);
font-size: 30px;
margin: 20px 20px;
}
.exitSymbol:hover {
cursor: pointer;
opacity: 0.8;
}
.fullTextStyle {
color: black;
width: 90%;
height: 80%;
text-align: left;
margin-top: 60px;
margin-bottom: 30px;
font-size: 18px;
}
<html>
<head>
<title> Note Taker </title>
<link type="text/css" href="notes.css" rel="stylesheet">
<link href="https://fonts.googleapis.com/css2?family=Montserrat:wght@100;200;300;400;500;600;700&display=swap" rel="stylesheet">
</head>
<body>
<div id="wrapper">
<h1> Note Taker </h1>
<h2 id="add-new-note"> Add A New Note: </h2>
<textarea id="new-note" name="note-box" placeholder="Write your note here"></textarea>
<button class="add-note"> Add Note </button>
<div id="note-feed">
</div>
</div>
<script src="notes.js"></script>
<script src="https://kit.fontawesome.com/6fc6f370ca.js" crossorigin="anonymous"></script>
</body>
</html>
我是 javascript 的新手，正在开发一个笔记应用程序来练习我目前学到的一些东西。一切正常，但是，当我单击“阅读更多”按钮查看笔记的溢出文本时，它会显示最新笔记中的文本，而不是我单击“阅读更多”的笔记。我希望在按下相应的“阅读更多”按钮时显示特定笔记的整个文本。我是不是想多了？我认为某种 for...of 或 for 循环的实现可能会帮助我实现这一结果。这是我的代码笔的 link：https://codepen.io/oliverc96/pen/xxdZYrr
const addNote = document.querySelector('.add-note');
const newNote = document.querySelector('#new-note');
const noteFeed = document.querySelector('#note-feed');
let modalBg = document.createElement('div');
let modalWindow = document.createElement('div');
let exitSymbol = document.createElement('i');
let modalText = document.createElement('p');
function expandNote() {
modalWindow.classList.add('enterAnimation');
modalBg.style.visibility = 'visible';
exitSymbol.addEventListener('click', () => {
modalBg.style.visibility = 'hidden';
modalWindow.classList.remove('enterAnimation');
})
}
function createNote() {
const noteContainer = document.createElement('div');
noteContainer.classList.add('containerStyle');
let noteHeader = document.createElement('h1');
const noteNum = noteFeed.childElementCount;
noteHeader.innerText = `Note #${noteNum + 1}`;
noteHeader.classList.add('headerStyle');
noteContainer.append(noteHeader);
let noteText = document.createElement('p');
noteText.innerText = `${newNote.value}`;
noteText.classList.add('paraStyle');
noteContainer.append(noteText);
let readMore = document.createElement('button');
readMore.innerText = 'Read More';
readMore.classList.add('btnStyle');
noteContainer.append(readMore);
noteFeed.append(noteContainer);
readMore.addEventListener('click', expandNote);
modalBg.classList.add('modal-bg');
modalWindow.classList.add('modal-window');
exitSymbol.className = 'far fa-times-circle';
exitSymbol.classList.add('exitSymbol');
modalWindow.append(exitSymbol);
modalText.classList.add('fullTextStyle');
modalText.innerText = `${noteText.innerText}`;
modalWindow.append(modalText);
modalBg.append(modalWindow);
noteContainer.append(modalBg);
newNote.value = '';
}
addNote.addEventListener('click', createNote);
newNote.addEventListener('keyup', function(e) {
if (e.keyCode === 13) {
e.preventDefault();
createNote();
}
})
实际上您的 modalText 将始终根据您的代码存储最新值。您可以按照以下步骤解决此问题。
- 将
data-attribute附加到noteText。 - 当点击
read more时传递该特定笔记的 ID。 - 现在只显示所选项目的 innerText。您可以使用 querySelector 使用
data-attribute. 获取
element
你可以检查我的实现。
console.clear();
const addNote = document.querySelector('.add-note');
const newNote = document.querySelector('#new-note');
const noteFeed = document.querySelector('#note-feed');
let modalBg = document.createElement('div');
let modalWindow = document.createElement('div');
let exitSymbol = document.createElement('i');
let modalText = document.createElement('p');
function expandNote(noteContainer, noteNum) {
return function () {
modalWindow.classList.add('enterAnimation');
modalBg.style.visibility = 'visible';
exitSymbol.addEventListener('click', () => {
modalBg.style.visibility = 'hidden';
modalWindow.classList.remove('enterAnimation');
})
const data = document.querySelector(`[data-id='${noteNum}']`).innerText;
showMoreModal(noteContainer, data);
}
}
function showMoreModal(noteContainer, data) {
modalBg.classList.add('modal-bg');
modalWindow.classList.add('modal-window');
exitSymbol.className = 'far fa-times-circle';
exitSymbol.classList.add('exitSymbol');
modalWindow.append(exitSymbol);
modalText.classList.add('fullTextStyle');
modalText.innerText = `${data}`;
modalWindow.append(modalText);
modalBg.append(modalWindow);
noteContainer.append(modalBg);
}
function createNote() {
const noteContainer = document.createElement('div');
noteContainer.classList.add('containerStyle');
let noteHeader = document.createElement('h1');
const noteNum = noteFeed.childElementCount;
noteHeader.innerText = `Note #${noteNum + 1}`;
noteHeader.classList.add('headerStyle');
noteContainer.append(noteHeader);
let noteText = document.createElement('p');
noteText.innerText = `${newNote.value}`;
noteText.classList.add('paraStyle');
noteText.setAttribute('data-id', noteNum);
noteContainer.append(noteText);
let readMore = document.createElement('button');
readMore.innerText = 'Read More';
readMore.classList.add('btnStyle');
noteContainer.append(readMore);
noteFeed.append(noteContainer);
readMore.addEventListener('click', expandNote(noteContainer, noteNum));
newNote.value = '';
}
addNote.addEventListener('click', createNote);
newNote.addEventListener('keyup', function(e) {
if (e.keyCode === 13) {
e.preventDefault();
createNote();
}
})
* {
padding: 0;
margin: 0;
box-sizing: border-box;
font-family: 'Montserrat', sans-serif;
}
#wrapper {
width: 1600px;
height: 100vh;
margin: auto;
text-align: center;
}
h1 {
font-size: 100px;
margin-top: 20px;
font-weight: 500;
}
h2 {
font-size: 50px;
font-weight: 400;
margin-top: 10px;
}
#add-new-note {
color: rgb(0, 153, 153);
}
textarea {
width: 1500px;
margin-top: 30px;
height: 60px;
border-radius: 6px;
padding: 20px;
font-size: 18px;
}
textarea:focus {
outline-color: black;
}
.add-note {
font-size: 20px;
width: 180px;
height: 50px;
border-radius: 6px;
margin-top: 30px;
background-color: rgb(0, 153, 153);
color: white;
border-style: solid;
border-color: rgb(0, 102, 102);
}
.add-note:hover {
background-color: rgb(0, 128, 128);
cursor: pointer;
}
#note-feed {
background-color: rgb(0, 153, 153);
height: 500px;
margin-top: 25px;
width: 1500px;
border-radius: 6px;
display: flex;
overflow: scroll;
flex-wrap: wrap;
padding: 20px 10px;
margin-left: 50px;
}
.containerStyle {
display: flex;
flex-direction: column;
justify-content: space-around;
background-color: rgb(169, 169, 214);
height: 48%;
width: 31%;
margin-right: 11px;
margin-left: 20px;
border-radius: 6px;
margin-bottom: 20px;
overflow: hidden;
padding: 0 28px;
padding-bottom: 15px;
text-align: left;
}
.headerStyle {
font-size: 30px;
}
.paraStyle {
display: -webkit-box;
-webkit-line-clamp: 3;
-webkit-box-orient: vertical;
font-size: 18px;
text-overflow: ellipsis;
overflow: hidden;
}
.btnStyle {
font-size: 20px;
width: 150px;
height: 40px;
border-radius: 6px;
background-color: rgb(255, 128, 128);
color: white;
border-style: solid;
border-color: rgb(255, 77, 77);
align-self: left;
}
.btnStyle:hover {
background-color: rgb(255, 102, 102);
cursor: pointer;
}
.modal-bg {
z-index: 1;
position: fixed;
width: 100%;
height: 100%;
top: 0;
left: 0;
background: rgba(0,0,0,0.5);
color: white;
display: flex;
justify-content: center;
align-items: center;
visibility: hidden;
overflow: scroll;
}
.modal-window {
border-radius: 6px;
background: white;
width: 70%;
min-height: 30%;
max-height: 70%;
overflow: scroll;
display: flex;
justify-content: flex-start;
align-items: flex-start;
}
.enterAnimation {
animation-name: fadeInDown;
animation-duration: 1s;
}
@keyframes fadeInDown {
0% {
opacity: 0;
transform: translateY(-200px);
}
100% {
opacity: 1;
}
}
.exitSymbol {
color: rgb(0, 128, 128);
font-size: 30px;
margin: 20px 20px;
}
.exitSymbol:hover {
cursor: pointer;
opacity: 0.8;
}
.fullTextStyle {
color: black;
width: 90%;
height: 80%;
text-align: left;
margin-top: 60px;
margin-bottom: 30px;
font-size: 18px;
}
<html>
<head>
<title> Note Taker </title>
<link type="text/css" href="notes.css" rel="stylesheet">
<link href="https://fonts.googleapis.com/css2?family=Montserrat:wght@100;200;300;400;500;600;700&display=swap" rel="stylesheet">
</head>
<body>
<div id="wrapper">
<h1> Note Taker </h1>
<h2 id="add-new-note"> Add A New Note: </h2>
<textarea id="new-note" name="note-box" placeholder="Write your note here"></textarea>
<button class="add-note"> Add Note </button>
<div id="note-feed">
</div>
</div>
<script src="notes.js"></script>
<script src="https://kit.fontawesome.com/6fc6f370ca.js" crossorigin="anonymous"></script>
</body>
</html>